Though Cruise stated recently in an interview with Playboy magazine that he's "so happy" with his three children and "extraordinary" wife, it apparently wasn't the case with Holmes as the decision behind the split is seemingly hers. TMZ reports that she officially filed Thursday for divorce, citing "irreconcilable differences."

"This is a personal and private matter for Katie and her family," said her attorney. "Katie's primary concern remains, as it always has been, her daughter's best interest."

Speaking of which, TMZ also states that Holmes is asking for full custody of Suri, as well as a "suitable amount" of child support from Cruise and a division of property.

A representative of Cruise announced recently, "Kate has filed for divorce and Tom is deeply saddened and is concentrating on his three children. Please allow them their privacy."

The pair married in an Italian castle in November 2006 after a whirlwind courtship (that included Cruise famously jumping on Oprah's couch in glee). Suri was born five months prior. This was Holmes' first marriage and Cruise's third -- he was previously wed to actresses Mimi Rogers and Nicole Kidman.

What do you think is the reason behind the divorce? Let us know in the comments.